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<head>
    <meta charset="UTF-8">
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    <title>Document</title>
</head>
<body>
    <ul>
        <li>首页</li>
        <li>学校概况</li>
        <li>机构设置</li>
        <li>
            师资队伍
            <ul>
                <li>师资概况</li>
                <li>机构设置</li>
                <!-- ul>li*2 -->
            </ul>
 
        </li>
    </ul>
</body>
</html>